CARBON NANOHORN STRUCTURE, COMPOSITION CAPABLE OF CONTROLLING THE RELEASE OF ORGANIC SUBSTANCE INCLUDED THEREIN, AND METHOD FOR THE CONTROLLED RELEASE

摘要

Disclosed is a carbon nanohorn structure wherein an oxygen-containing functional group located at an open edge of the nanohorn is bound to a cation. Also disclosed is a carbon nanohorn structure having an organic substance included in an internal space of the nanohorn. A novel carbon nanohorn structure is provided which can control the release of a substance included therein through an opening site precisely by a simple means. By employing the carbon nanohorn structure, it becomes possible to provide a novel means for achieving the controlled release of a substance included in the carbon nanohorn structure.